You can work around this by copying a correct 32-bit libSDL_image-1.2.so into /usr/lib32. I've attached the one from current 32-bit Intrepid (I know it works and I don't have spare systems to try with 32-bit Jaunty).

Oops. That's what happens when you get distracted by a phone call half-way through a comment.

Let's try this again:

WORKAROUND (that WORKS)

You can work around this by copying the correct 32-bit libs to your /usr/lib32. I've attached the python and libSDL_image libs from 32-bit Intrepid and verified they work with glGo (and a couple of other 32-bit games).